| Author | Tokens | Token Proportion | Commits | Commit Proportion |
|---|---|---|---|---|
| Michal Kalderon | 8819 | 87.73% | 18 | 34.62% |
| Yuval Bason | 537 | 5.34% | 1 | 1.92% |
| Yuval Basson | 427 | 4.25% | 4 | 7.69% |
| Ram Amrani | 85 | 0.85% | 4 | 7.69% |
| Yury Norov | 58 | 0.58% | 1 | 1.92% |
| Yuval Mintz | 47 | 0.47% | 4 | 7.69% |
| Alexander Lobakin | 23 | 0.23% | 3 | 5.77% |
| Kamal Heib | 17 | 0.17% | 2 | 3.85% |
| Denis Bolotin | 11 | 0.11% | 2 | 3.85% |
| Dan Carpenter | 5 | 0.05% | 1 | 1.92% |
| Prabhakar Kushwaha | 5 | 0.05% | 1 | 1.92% |
| Jason Yan | 4 | 0.04% | 1 | 1.92% |
| Omkar Kulkarni | 3 | 0.03% | 1 | 1.92% |
| Christophe Jaillet | 3 | 0.03% | 2 | 3.85% |
| Yue haibing | 2 | 0.02% | 1 | 1.92% |
| Ariel Elior | 2 | 0.02% | 1 | 1.92% |
| Shai Malin | 1 | 0.01% | 1 | 1.92% |
| Jason Gunthorpe | 1 | 0.01% | 1 | 1.92% |
| Jakub Kiciński | 1 | 0.01% | 1 | 1.92% |
| Frederick Lawler | 1 | 0.01% | 1 | 1.92% |
| Colin Ian King | 1 | 0.01% | 1 | 1.92% |
| Total | 10053 | 52 |
// SPDX-License-Identifier: (GPL-2.0-only OR BSD-3-Clause) /* QLogic qed NIC Driver * Copyright (c) 2015-2017 QLogic Corporation * Copyright (c) 2019-2020 Marvell International Ltd. */ #include <linux/types.h> #include <asm/byteorder.h> #include <linux/bitops.h> #include <linux/delay.h> #include <linux/dma-mapping.h> #include <linux/errno.h> #include <linux/io.h> #include <linux/kernel.h> #include <linux/list.h> #include <linux/module.h> #include <linux/mutex.h> #include <linux/pci.h> #include <linux/slab.h> #include <linux/spinlock.h> #include <linux/string.h> #include <net/addrconf.h> #include "qed.h" #include "qed_cxt.h" #include "qed_hsi.h" #include "qed_iro_hsi.h" #include "qed_hw.h" #include "qed_init_ops.h" #include "qed_int.h" #include "qed_ll2.h" #include "qed_mcp.h" #include "qed_reg_addr.h" #include <linux/qed/qed_rdma_if.h> #include "qed_rdma.h" #include "qed_roce.h" #include "qed_sp.h" int qed_rdma_bmap_alloc(struct qed_hwfn *p_hwfn, struct qed_bmap *bmap, u32 max_count, char *name) { DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "max_count = %08x\n", max_count); bmap->max_count = max_count; bmap->bitmap = bitmap_zalloc(max_count, GFP_KERNEL); if (!bmap->bitmap) return -ENOMEM; snprintf(bmap->name, QED_RDMA_MAX_BMAP_NAME, "%s", name); DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "0\n"); return 0; } int qed_rdma_bmap_alloc_id(struct qed_hwfn *p_hwfn, struct qed_bmap *bmap, u32 *id_num) { *id_num = find_first_zero_bit(bmap->bitmap, bmap->max_count); if (*id_num >= bmap->max_count) return -EINVAL; __set_bit(*id_num, bmap->bitmap); DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "%s bitmap: allocated id %d\n", bmap->name, *id_num); return 0; } void qed_bmap_set_id(struct qed_hwfn *p_hwfn, struct qed_bmap *bmap, u32 id_num) { if (id_num >= bmap->max_count) return; __set_bit(id_num, bmap->bitmap); } void qed_bmap_release_id(struct qed_hwfn *p_hwfn, struct qed_bmap *bmap, u32 id_num) { bool b_acquired; if (id_num >= bmap->max_count) return; b_acquired = test_and_clear_bit(id_num, bmap->bitmap); if (!b_acquired) { DP_NOTICE(p_hwfn, "%s bitmap: id %d already released\n", bmap->name, id_num); return; } DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "%s bitmap: released id %d\n", bmap->name, id_num); } int qed_bmap_test_id(struct qed_hwfn *p_hwfn, struct qed_bmap *bmap, u32 id_num) { if (id_num >= bmap->max_count) return -1; return test_bit(id_num, bmap->bitmap); } static bool qed_bmap_is_empty(struct qed_bmap *bmap) { return bitmap_empty(bmap->bitmap, bmap->max_count); } static u32 qed_rdma_get_sb_id(void *p_hwfn, u32 rel_sb_id) { /* First sb id for RoCE is after all the l2 sb */ return FEAT_NUM((struct qed_hwfn *)p_hwfn, QED_PF_L2_QUE) + rel_sb_id; } int qed_rdma_info_alloc(struct qed_hwfn *p_hwfn) { struct qed_rdma_info *p_rdma_info; p_rdma_info = kzalloc(sizeof(*p_rdma_info), GFP_KERNEL); if (!p_rdma_info) return -ENOMEM; spin_lock_init(&p_rdma_info->lock); p_hwfn->p_rdma_info = p_rdma_info; return 0; } void qed_rdma_info_free(struct qed_hwfn *p_hwfn) { kfree(p_hwfn->p_rdma_info); p_hwfn->p_rdma_info = NULL; } static int qed_rdma_alloc(struct qed_hwfn *p_hwfn) { struct qed_rdma_info *p_rdma_info = p_hwfn->p_rdma_info; u32 num_cons, num_tasks; int rc = -ENOMEM; DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "Allocating RDMA\n"); if (QED_IS_IWARP_PERSONALITY(p_hwfn)) p_rdma_info->proto = PROTOCOLID_IWARP; else p_rdma_info->proto = PROTOCOLID_ROCE; num_cons = qed_cxt_get_proto_cid_count(p_hwfn, p_rdma_info->proto, NULL); if (QED_IS_IWARP_PERSONALITY(p_hwfn)) p_rdma_info->num_qps = num_cons; else p_rdma_info->num_qps = num_cons / 2; /* 2 cids per qp */ num_tasks = qed_cxt_get_proto_tid_count(p_hwfn, PROTOCOLID_ROCE); /* Each MR uses a single task */ p_rdma_info->num_mrs = num_tasks; /* Queue zone lines are shared between RoCE and L2 in such a way that * they can be used by each without obstructing the other. */ p_rdma_info->queue_zone_base = (u16)RESC_START(p_hwfn, QED_L2_QUEUE); p_rdma_info->max_queue_zones = (u16)RESC_NUM(p_hwfn, QED_L2_QUEUE); /* Allocate a struct with device params and fill it */ p_rdma_info->dev = kzalloc(sizeof(*p_rdma_info->dev), GFP_KERNEL); if (!p_rdma_info->dev) return rc; /* Allocate a struct with port params and fill it */ p_rdma_info->port = kzalloc(sizeof(*p_rdma_info->port), GFP_KERNEL); if (!p_rdma_info->port) goto free_rdma_dev; /* Allocate bit map for pd's */ rc = qed_rdma_bmap_alloc(p_hwfn, &p_rdma_info->pd_map, RDMA_MAX_PDS, "PD"); if (rc) { DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "Failed to allocate pd_map, rc = %d\n", rc); goto free_rdma_port; } /* Allocate bit map for XRC Domains */ rc = qed_rdma_bmap_alloc(p_hwfn, &p_rdma_info->xrcd_map, QED_RDMA_MAX_XRCDS, "XRCD"); if (rc) { DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "Failed to allocate xrcd_map,rc = %d\n", rc); goto free_pd_map; } /* Allocate DPI bitmap */ rc = qed_rdma_bmap_alloc(p_hwfn, &p_rdma_info->dpi_map, p_hwfn->dpi_count, "DPI"); if (rc) { DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "Failed to allocate DPI bitmap, rc = %d\n", rc); goto free_xrcd_map; } /* Allocate bitmap for cq's. The maximum number of CQs is bound to * the number of connections we support. (num_qps in iWARP or * num_qps/2 in RoCE). */ rc = qed_rdma_bmap_alloc(p_hwfn, &p_rdma_info->cq_map, num_cons, "CQ"); if (rc) { DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "Failed to allocate cq bitmap, rc = %d\n", rc); goto free_dpi_map; } /* Allocate bitmap for toggle bit for cq icids * We toggle the bit every time we create or resize cq for a given icid. * Size needs to equal the size of the cq bmap. */ rc = qed_rdma_bmap_alloc(p_hwfn, &p_rdma_info->toggle_bits, num_cons, "Toggle"); if (rc) { DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "Failed to allocate toggle bits, rc = %d\n", rc); goto free_cq_map; } /* Allocate bitmap for itids */ rc = qed_rdma_bmap_alloc(p_hwfn, &p_rdma_info->tid_map, p_rdma_info->num_mrs, "MR"); if (rc) { DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "Failed to allocate itids bitmaps, rc = %d\n", rc); goto free_toggle_map; } /* Allocate bitmap for cids used for qps. */ rc = qed_rdma_bmap_alloc(p_hwfn, &p_rdma_info->cid_map, num_cons, "CID"); if (rc) { DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "Failed to allocate cid bitmap, rc = %d\n", rc); goto free_tid_map; } /* Allocate bitmap for cids used for responders/requesters. */ rc = qed_rdma_bmap_alloc(p_hwfn, &p_rdma_info->real_cid_map, num_cons, "REAL_CID"); if (rc) { DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "Failed to allocate real cid bitmap, rc = %d\n", rc); goto free_cid_map; } /* The first SRQ follows the last XRC SRQ. This means that the * SRQ IDs start from an offset equals to max_xrc_srqs. */ p_rdma_info->srq_id_offset = p_hwfn->p_cxt_mngr->xrc_srq_count; rc = qed_rdma_bmap_alloc(p_hwfn, &p_rdma_info->xrc_srq_map, p_hwfn->p_cxt_mngr->xrc_srq_count, "XRC SRQ"); if (rc) { DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "Failed to allocate xrc srq bitmap, rc = %d\n", rc); goto free_real_cid_map; } /* Allocate bitmap for srqs */ p_rdma_info->num_srqs = p_hwfn->p_cxt_mngr->srq_count; rc = qed_rdma_bmap_alloc(p_hwfn, &p_rdma_info->srq_map, p_rdma_info->num_srqs, "SRQ"); if (rc) { DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "Failed to allocate srq bitmap, rc = %d\n", rc); goto free_xrc_srq_map; } if (QED_IS_IWARP_PERSONALITY(p_hwfn)) rc = qed_iwarp_alloc(p_hwfn); if (rc) goto free_srq_map; DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "Allocation successful\n"); return 0; free_srq_map: kfree(p_rdma_info->srq_map.bitmap); free_xrc_srq_map: kfree(p_rdma_info->xrc_srq_map.bitmap); free_real_cid_map: kfree(p_rdma_info->real_cid_map.bitmap); free_cid_map: kfree(p_rdma_info->cid_map.bitmap); free_tid_map: kfree(p_rdma_info->tid_map.bitmap); free_toggle_map: kfree(p_rdma_info->toggle_bits.bitmap); free_cq_map: kfree(p_rdma_info->cq_map.bitmap); free_dpi_map: kfree(p_rdma_info->dpi_map.bitmap); free_xrcd_map: kfree(p_rdma_info->xrcd_map.bitmap); free_pd_map: kfree(p_rdma_info->pd_map.bitmap); free_rdma_port: kfree(p_rdma_info->port); free_rdma_dev: kfree(p_rdma_info->dev); return rc; } void qed_rdma_bmap_free(struct qed_hwfn *p_hwfn, struct qed_bmap *bmap, bool check) { unsigned int bit, weight, nbits; unsigned long *b; if (!check) goto end; weight = bitmap_weight(bmap->bitmap, bmap->max_count); if (!weight) goto end; DP_NOTICE(p_hwfn, "%s bitmap not free - size=%d, weight=%d, 512 bits per line\n", bmap->name, bmap->max_count, weight); for (bit = 0; bit < bmap->max_count; bit += 512) { b = bmap->bitmap + BITS_TO_LONGS(bit); nbits = min(bmap->max_count - bit, 512U); if (!bitmap_empty(b, nbits)) DP_NOTICE(p_hwfn, "line 0x%04x: %*pb\n", bit / 512, nbits, b); } end: bitmap_free(bmap->bitmap); bmap->bitmap = NULL; } static void qed_rdma_resc_free(struct qed_hwfn *p_hwfn) { struct qed_rdma_info *p_rdma_info = p_hwfn->p_rdma_info; if (QED_IS_IWARP_PERSONALITY(p_hwfn)) qed_iwarp_resc_free(p_hwfn); qed_rdma_bmap_free(p_hwfn, &p_hwfn->p_rdma_info->cid_map, 1); qed_rdma_bmap_free(p_hwfn, &p_hwfn->p_rdma_info->pd_map, 1); qed_rdma_bmap_free(p_hwfn, &p_hwfn->p_rdma_info->dpi_map, 1); qed_rdma_bmap_free(p_hwfn, &p_hwfn->p_rdma_info->cq_map, 1); qed_rdma_bmap_free(p_hwfn, &p_hwfn->p_rdma_info->toggle_bits, 0); qed_rdma_bmap_free(p_hwfn, &p_hwfn->p_rdma_info->tid_map, 1); qed_rdma_bmap_free(p_hwfn, &p_hwfn->p_rdma_info->srq_map, 1); qed_rdma_bmap_free(p_hwfn, &p_hwfn->p_rdma_info->real_cid_map, 1); qed_rdma_bmap_free(p_hwfn, &p_hwfn->p_rdma_info->xrc_srq_map, 1); qed_rdma_bmap_free(p_hwfn, &p_hwfn->p_rdma_info->xrcd_map, 1); kfree(p_rdma_info->port); kfree(p_rdma_info->dev); } static void qed_rdma_free_tid(void *rdma_cxt, u32 itid) { struct qed_hwfn *p_hwfn = (struct qed_hwfn *)rdma_cxt; DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "itid = %08x\n", itid); spin_lock_bh(&p_hwfn->p_rdma_info->lock); qed_bmap_release_id(p_hwfn, &p_hwfn->p_rdma_info->tid_map, itid); spin_unlock_bh(&p_hwfn->p_rdma_info->lock); } static void qed_rdma_free_reserved_lkey(struct qed_hwfn *p_hwfn) { qed_rdma_free_tid(p_hwfn, p_hwfn->p_rdma_info->dev->reserved_lkey); } static void qed_rdma_free(struct qed_hwfn *p_hwfn) { DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "Freeing RDMA\n"); qed_rdma_free_reserved_lkey(p_hwfn); qed_cxt_free_proto_ilt(p_hwfn, p_hwfn->p_rdma_info->proto); qed_rdma_resc_free(p_hwfn); } static void qed_rdma_init_events(struct qed_hwfn *p_hwfn, struct qed_rdma_start_in_params *params) { struct qed_rdma_events *events; events = &p_hwfn->p_rdma_info->events; events->unaffiliated_event = params->events->unaffiliated_event; events->affiliated_event = params->events->affiliated_event; events->context = params->events->context; } static void qed_rdma_init_devinfo(struct qed_hwfn *p_hwfn, struct qed_rdma_start_in_params *params) { struct qed_rdma_device *dev = p_hwfn->p_rdma_info->dev; struct qed_dev *cdev = p_hwfn->cdev; u32 pci_status_control; u32 num_qps; /* Vendor specific information */ dev->vendor_id = cdev->vendor_id; dev->vendor_part_id = cdev->device_id; dev->hw_ver = cdev->chip_rev; dev->fw_ver = (FW_MAJOR_VERSION << 24) | (FW_MINOR_VERSION << 16) | (FW_REVISION_VERSION << 8) | (FW_ENGINEERING_VERSION); addrconf_addr_eui48((u8 *)&dev->sys_image_guid, p_hwfn->hw_info.hw_mac_addr); dev->node_guid = dev->sys_image_guid; dev->max_sge = min_t(u32, RDMA_MAX_SGE_PER_SQ_WQE, RDMA_MAX_SGE_PER_RQ_WQE); if (cdev->rdma_max_sge) dev->max_sge = min_t(u32, cdev->rdma_max_sge, dev->max_sge); dev->max_srq_sge = QED_RDMA_MAX_SGE_PER_SRQ_WQE; if (p_hwfn->cdev->rdma_max_srq_sge) { dev->max_srq_sge = min_t(u32, p_hwfn->cdev->rdma_max_srq_sge, dev->max_srq_sge); } dev->max_inline = ROCE_REQ_MAX_INLINE_DATA_SIZE; dev->max_inline = (cdev->rdma_max_inline) ? min_t(u32, cdev->rdma_max_inline, dev->max_inline) : dev->max_inline; dev->max_wqe = QED_RDMA_MAX_WQE; dev->max_cnq = (u8)FEAT_NUM(p_hwfn, QED_RDMA_CNQ); /* The number of QPs may be higher than QED_ROCE_MAX_QPS, because * it is up-aligned to 16 and then to ILT page size within qed cxt. * This is OK in terms of ILT but we don't want to configure the FW * above its abilities */ num_qps = ROCE_MAX_QPS; num_qps = min_t(u64, num_qps, p_hwfn->p_rdma_info->num_qps); dev->max_qp = num_qps; /* CQs uses the same icids that QPs use hence they are limited by the * number of icids. There are two icids per QP. */ dev->max_cq = num_qps * 2; /* The number of mrs is smaller by 1 since the first is reserved */ dev->max_mr = p_hwfn->p_rdma_info->num_mrs - 1; dev->max_mr_size = QED_RDMA_MAX_MR_SIZE; /* The maximum CQE capacity per CQ supported. * max number of cqes will be in two layer pbl, * 8 is the pointer size in bytes * 32 is the size of cq element in bytes */ if (params->cq_mode == QED_RDMA_CQ_MODE_32_BITS) dev->max_cqe = QED_RDMA_MAX_CQE_32_BIT; else dev->max_cqe = QED_RDMA_MAX_CQE_16_BIT; dev->max_mw = 0; dev->max_mr_mw_fmr_pbl = (PAGE_SIZE / 8) * (PAGE_SIZE / 8); dev->max_mr_mw_fmr_size = dev->max_mr_mw_fmr_pbl * PAGE_SIZE; if (QED_IS_ROCE_PERSONALITY(p_hwfn)) dev->max_pkey = QED_RDMA_MAX_P_KEY; dev->max_srq = p_hwfn->p_rdma_info->num_srqs; dev->max_srq_wr = QED_RDMA_MAX_SRQ_WQE_ELEM; dev->max_qp_resp_rd_atomic_resc = RDMA_RING_PAGE_SIZE / (RDMA_RESP_RD_ATOMIC_ELM_SIZE * 2); dev->max_qp_req_rd_atomic_resc = RDMA_RING_PAGE_SIZE / RDMA_REQ_RD_ATOMIC_ELM_SIZE; dev->max_dev_resp_rd_atomic_resc = dev->max_qp_resp_rd_atomic_resc * p_hwfn->p_rdma_info->num_qps; dev->page_size_caps = QED_RDMA_PAGE_SIZE_CAPS; dev->dev_ack_delay = QED_RDMA_ACK_DELAY; dev->max_pd = RDMA_MAX_PDS; dev->max_ah = p_hwfn->p_rdma_info->num_qps; dev->max_stats_queues = (u8)RESC_NUM(p_hwfn, QED_RDMA_STATS_QUEUE); /* Set capablities */ dev->dev_caps = 0; SET_FIELD(dev->dev_caps, QED_RDMA_DEV_CAP_RNR_NAK, 1); SET_FIELD(dev->dev_caps, QED_RDMA_DEV_CAP_PORT_ACTIVE_EVENT, 1); SET_FIELD(dev->dev_caps, QED_RDMA_DEV_CAP_PORT_CHANGE_EVENT, 1); SET_FIELD(dev->dev_caps, QED_RDMA_DEV_CAP_RESIZE_CQ, 1); SET_FIELD(dev->dev_caps, QED_RDMA_DEV_CAP_BASE_MEMORY_EXT, 1); SET_FIELD(dev->dev_caps, QED_RDMA_DEV_CAP_BASE_QUEUE_EXT, 1); SET_FIELD(dev->dev_caps, QED_RDMA_DEV_CAP_ZBVA, 1); SET_FIELD(dev->dev_caps, QED_RDMA_DEV_CAP_LOCAL_INV_FENCE, 1); /* Check atomic operations support in PCI configuration space. */ pcie_capability_read_dword(cdev->pdev, PCI_EXP_DEVCTL2, &pci_status_control); if (pci_status_control & PCI_EXP_DEVCTL2_LTR_EN) SET_FIELD(dev->dev_caps, QED_RDMA_DEV_CAP_ATOMIC_OP, 1); if (QED_IS_IWARP_PERSONALITY(p_hwfn)) qed_iwarp_init_devinfo(p_hwfn); } static void qed_rdma_init_port(struct qed_hwfn *p_hwfn) { struct qed_rdma_port *port = p_hwfn->p_rdma_info->port; struct qed_rdma_device *dev = p_hwfn->p_rdma_info->dev; port->port_state = p_hwfn->mcp_info->link_output.link_up ? QED_RDMA_PORT_UP : QED_RDMA_PORT_DOWN; port->max_msg_size = min_t(u64, (dev->max_mr_mw_fmr_size * p_hwfn->cdev->rdma_max_sge), BIT(31)); port->pkey_bad_counter = 0; } static int qed_rdma_init_hw(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt) { int rc = 0; DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "Initializing HW\n"); p_hwfn->b_rdma_enabled_in_prs = false; if (QED_IS_IWARP_PERSONALITY(p_hwfn)) qed_iwarp_init_hw(p_hwfn, p_ptt); else rc = qed_roce_init_hw(p_hwfn, p_ptt); return rc; } static int qed_rdma_start_fw(struct qed_hwfn *p_hwfn, struct qed_rdma_start_in_params *params, struct qed_ptt *p_ptt) { struct rdma_init_func_ramrod_data *p_ramrod; struct qed_rdma_cnq_params *p_cnq_pbl_list; struct rdma_init_func_hdr *p_params_header; struct rdma_cnq_params *p_cnq_params; struct qed_sp_init_data init_data; struct qed_spq_entry *p_ent; u32 cnq_id, sb_id; u16 igu_sb_id; int rc; DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "Starting FW\n"); /* Save the number of cnqs for the function close ramrod */ p_hwfn->p_rdma_info->num_cnqs = params->desired_cnq; /* Get SPQ entry */ memset(&init_data, 0, sizeof(init_data)); init_data.opaque_fid = p_hwfn->hw_info.opaque_fid; init_data.comp_mode = QED_SPQ_MODE_EBLOCK; rc = qed_sp_init_request(p_hwfn, &p_ent, RDMA_RAMROD_FUNC_INIT, p_hwfn->p_rdma_info->proto, &init_data); if (rc) return rc; if (QED_IS_IWARP_PERSONALITY(p_hwfn)) { qed_iwarp_init_fw_ramrod(p_hwfn, &p_ent->ramrod.iwarp_init_func); p_ramrod = &p_ent->ramrod.iwarp_init_func.rdma; } else { p_ramrod = &p_ent->ramrod.roce_init_func.rdma; } p_params_header = &p_ramrod->params_header; p_params_header->cnq_start_offset = (u8)RESC_START(p_hwfn, QED_RDMA_CNQ_RAM); p_params_header->num_cnqs = params->desired_cnq; p_params_header->first_reg_srq_id = cpu_to_le16(p_hwfn->p_rdma_info->srq_id_offset); p_params_header->reg_srq_base_addr = cpu_to_le32(qed_cxt_get_ilt_page_size(p_hwfn, ILT_CLI_TSDM)); if (params->cq_mode == QED_RDMA_CQ_MODE_16_BITS) p_params_header->cq_ring_mode = 1; else p_params_header->cq_ring_mode = 0; for (cnq_id = 0; cnq_id < params->desired_cnq; cnq_id++) { sb_id = qed_rdma_get_sb_id(p_hwfn, cnq_id); igu_sb_id = qed_get_igu_sb_id(p_hwfn, sb_id); p_ramrod->cnq_params[cnq_id].sb_num = cpu_to_le16(igu_sb_id); p_cnq_params = &p_ramrod->cnq_params[cnq_id]; p_cnq_pbl_list = ¶ms->cnq_pbl_list[cnq_id]; p_cnq_params->sb_index = p_hwfn->pf_params.rdma_pf_params.gl_pi; p_cnq_params->num_pbl_pages = p_cnq_pbl_list->num_pbl_pages; DMA_REGPAIR_LE(p_cnq_params->pbl_base_addr, p_cnq_pbl_list->pbl_ptr); /* we assume here that cnq_id and qz_offset are the same */ p_cnq_params->queue_zone_num = cpu_to_le16(p_hwfn->p_rdma_info->queue_zone_base + cnq_id); } return qed_spq_post(p_hwfn, p_ent, NULL); } static int qed_rdma_alloc_tid(void *rdma_cxt, u32 *itid) { struct qed_hwfn *p_hwfn = (struct qed_hwfn *)rdma_cxt; int rc; DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "Allocate TID\n"); spin_lock_bh(&p_hwfn->p_rdma_info->lock); rc = qed_rdma_bmap_alloc_id(p_hwfn, &p_hwfn->p_rdma_info->tid_map, itid); spin_unlock_bh(&p_hwfn->p_rdma_info->lock); if (rc) goto out; rc = qed_cxt_dynamic_ilt_alloc(p_hwfn, QED_ELEM_TASK, *itid); out: DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "Allocate TID - done, rc = %d\n", rc); return rc; } static int qed_rdma_reserve_lkey(struct qed_hwfn *p_hwfn) { struct qed_rdma_device *dev = p_hwfn->p_rdma_info->dev; /* Tid 0 will be used as the key for "reserved MR". * The driver should allocate memory for it so it can be loaded but no * ramrod should be passed on it. */ qed_rdma_alloc_tid(p_hwfn, &dev->reserved_lkey); if (dev->reserved_lkey != RDMA_RESERVED_LKEY) { DP_NOTICE(p_hwfn, "Reserved lkey should be equal to RDMA_RESERVED_LKEY\n"); return -EINVAL; } return 0; } static int qed_rdma_setup(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt, struct qed_rdma_start_in_params *params) { int rc; DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "RDMA setup\n"); qed_rdma_init_devinfo(p_hwfn, params); qed_rdma_init_port(p_hwfn); qed_rdma_init_events(p_hwfn, params); rc = qed_rdma_reserve_lkey(p_hwfn); if (rc) return rc; rc = qed_rdma_init_hw(p_hwfn, p_ptt); if (rc) return rc; if (QED_IS_IWARP_PERSONALITY(p_hwfn)) { rc = qed_iwarp_setup(p_hwfn, params); if (rc) return rc; } else { rc = qed_roce_setup(p_hwfn); if (rc) return rc; } return qed_rdma_start_fw(p_hwfn, params, p_ptt); } static int qed_rdma_stop(void *rdma_cxt) { struct qed_hwfn *p_hwfn = (struct qed_hwfn *)rdma_cxt; struct rdma_close_func_ramrod_data *p_ramrod; struct qed_sp_init_data init_data; struct qed_spq_entry *p_ent; struct qed_ptt *p_ptt; u32 ll2_ethertype_en; int rc = -EBUSY; DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "RDMA stop\n"); p_ptt = qed_ptt_acquire(p_hwfn); if (!p_ptt) { DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "Failed to acquire PTT\n"); return rc; } /* Disable RoCE search */ qed_wr(p_hwfn, p_ptt, p_hwfn->rdma_prs_search_reg, 0); p_hwfn->b_rdma_enabled_in_prs = false; p_hwfn->p_rdma_info->active = 0; qed_wr(p_hwfn, p_ptt, PRS_REG_ROCE_DEST_QP_MAX_PF, 0); ll2_ethertype_en = qed_rd(p_hwfn, p_ptt, PRS_REG_LIGHT_L2_ETHERTYPE_EN); qed_wr(p_hwfn, p_ptt, PRS_REG_LIGHT_L2_ETHERTYPE_EN, (ll2_ethertype_en & 0xFFFE)); if (QED_IS_IWARP_PERSONALITY(p_hwfn)) { rc = qed_iwarp_stop(p_hwfn); if (rc) { qed_ptt_release(p_hwfn, p_ptt); return rc; } } else { qed_roce_stop(p_hwfn); } qed_ptt_release(p_hwfn, p_ptt); /* Get SPQ entry */ memset(&init_data, 0, sizeof(init_data)); init_data.opaque_fid = p_hwfn->hw_info.opaque_fid; init_data.comp_mode = QED_SPQ_MODE_EBLOCK; /* Stop RoCE */ rc = qed_sp_init_request(p_hwfn, &p_ent, RDMA_RAMROD_FUNC_CLOSE, p_hwfn->p_rdma_info->proto, &init_data); if (rc) goto out; p_ramrod = &p_ent->ramrod.rdma_close_func; p_ramrod->num_cnqs = p_hwfn->p_rdma_info->num_cnqs; p_ramrod->cnq_start_offset = (u8)RESC_START(p_hwfn, QED_RDMA_CNQ_RAM); rc = qed_spq_post(p_hwfn, p_ent, NULL); out: qed_rdma_free(p_hwfn); DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "RDMA stop done, rc = %d\n", rc); return rc; } static int qed_rdma_add_user(void *rdma_cxt, struct qed_rdma_add_user_out_params *out_params) { struct qed_hwfn *p_hwfn = (struct qed_hwfn *)rdma_cxt; u32 dpi_start_offset; u32 returned_id = 0; int rc; DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "Adding User\n"); /* Allocate DPI */ spin_lock_bh(&p_hwfn->p_rdma_info->lock); rc = qed_rdma_bmap_alloc_id(p_hwfn, &p_hwfn->p_rdma_info->dpi_map, &returned_id); spin_unlock_bh(&p_hwfn->p_rdma_info->lock); out_params->dpi = (u16)returned_id; /* Calculate the corresponding DPI address */ dpi_start_offset = p_hwfn->dpi_start_offset; out_params->dpi_addr = p_hwfn->doorbells + dpi_start_offset + out_params->dpi * p_hwfn->dpi_size; out_params->dpi_phys_addr = p_hwfn->db_phys_addr + dpi_start_offset + ((out_params->dpi) * p_hwfn->dpi_size); out_params->dpi_size = p_hwfn->dpi_size; out_params->wid_count = p_hwfn->wid_count; DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "Adding user - done, rc = %d\n", rc); return rc; } static struct qed_rdma_port *qed_rdma_query_port(void *rdma_cxt) { struct qed_hwfn *p_hwfn = (struct qed_hwfn *)rdma_cxt; struct qed_rdma_port *p_port = p_hwfn->p_rdma_info->port; struct qed_mcp_link_state *p_link_output; DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "RDMA Query port\n"); /* The link state is saved only for the leading hwfn */ p_link_output = &QED_LEADING_HWFN(p_hwfn->cdev)->mcp_info->link_output; p_port->port_state = p_link_output->link_up ? QED_RDMA_PORT_UP : QED_RDMA_PORT_DOWN; p_port->link_speed = p_link_output->speed; p_port->max_msg_size = RDMA_MAX_DATA_SIZE_IN_WQE; return p_port; } static struct qed_rdma_device *qed_rdma_query_device(void *rdma_cxt) { struct qed_hwfn *p_hwfn = (struct qed_hwfn *)rdma_cxt; DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "Query device\n"); /* Return struct with device parameters */ return p_hwfn->p_rdma_info->dev; } static void qed_rdma_cnq_prod_update(void *rdma_cxt, u8 qz_offset, u16 prod) { struct qed_hwfn *p_hwfn; u16 qz_num; u32 addr; p_hwfn = (struct qed_hwfn *)rdma_cxt; if (qz_offset > p_hwfn->p_rdma_info->max_queue_zones) { DP_NOTICE(p_hwfn, "queue zone offset %d is too large (max is %d)\n", qz_offset, p_hwfn->p_rdma_info->max_queue_zones); return; } qz_num = p_hwfn->p_rdma_info->queue_zone_base + qz_offset; addr = GET_GTT_REG_ADDR(GTT_BAR0_MAP_REG_USDM_RAM, USTORM_COMMON_QUEUE_CONS, qz_num); REG_WR16(p_hwfn, addr, prod); /* keep prod updates ordered */ wmb(); } static int qed_fill_rdma_dev_info(struct qed_dev *cdev, struct qed_dev_rdma_info *info) { struct qed_hwfn *p_hwfn = QED_AFFIN_HWFN(cdev); memset(info, 0, sizeof(*info)); info->rdma_type = QED_IS_ROCE_PERSONALITY(p_hwfn) ? QED_RDMA_TYPE_ROCE : QED_RDMA_TYPE_IWARP; info->user_dpm_enabled = (p_hwfn->db_bar_no_edpm == 0); qed_fill_dev_info(cdev, &info->common); return 0; } static int qed_rdma_get_sb_start(struct qed_dev *cdev) { int feat_num; if (cdev->num_hwfns > 1) feat_num = FEAT_NUM(QED_AFFIN_HWFN(cdev), QED_PF_L2_QUE); else feat_num = FEAT_NUM(QED_AFFIN_HWFN(cdev), QED_PF_L2_QUE) * cdev->num_hwfns; return feat_num; } static int qed_rdma_get_min_cnq_msix(struct qed_dev *cdev) { int n_cnq = FEAT_NUM(QED_AFFIN_HWFN(cdev), QED_RDMA_CNQ); int n_msix = cdev->int_params.rdma_msix_cnt; return min_t(int, n_cnq, n_msix); } static int qed_rdma_set_int(struct qed_dev *cdev, u16 cnt) { int limit = 0; /* Mark the fastpath as free/used */ cdev->int_params.fp_initialized = cnt ? true : false; if (cdev->int_params.out.int_mode != QED_INT_MODE_MSIX) { DP_ERR(cdev, "qed roce supports only MSI-X interrupts (detected %d).\n", cdev->int_params.out.int_mode); return -EINVAL; } else if (cdev->int_params.fp_msix_cnt) { limit = cdev->int_params.rdma_msix_cnt; } if (!limit) return -ENOMEM; return min_t(int, cnt, limit); } static int qed_rdma_get_int(struct qed_dev *cdev, struct qed_int_info *info) { memset(info, 0, sizeof(*info)); if (!cdev->int_params.fp_initialized) { DP_INFO(cdev, "Protocol driver requested interrupt information, but its support is not yet configured\n"); return -EINVAL; } if (cdev->int_params.out.int_mode == QED_INT_MODE_MSIX) { int msix_base = cdev->int_params.rdma_msix_base; info->msix_cnt = cdev->int_params.rdma_msix_cnt; info->msix = &cdev->int_params.msix_table[msix_base]; DP_VERBOSE(cdev, QED_MSG_RDMA, "msix_cnt = %d msix_base=%d\n", info->msix_cnt, msix_base); } return 0; } static int qed_rdma_alloc_pd(void *rdma_cxt, u16 *pd) { struct qed_hwfn *p_hwfn = (struct qed_hwfn *)rdma_cxt; u32 returned_id; int rc; DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "Alloc PD\n"); /* Allocates an unused protection domain */ spin_lock_bh(&p_hwfn->p_rdma_info->lock); rc = qed_rdma_bmap_alloc_id(p_hwfn, &p_hwfn->p_rdma_info->pd_map, &returned_id); spin_unlock_bh(&p_hwfn->p_rdma_info->lock); *pd = (u16)returned_id; DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "Alloc PD - done, rc = %d\n", rc); return rc; } static void qed_rdma_free_pd(void *rdma_cxt, u16 pd) { struct qed_hwfn *p_hwfn = (struct qed_hwfn *)rdma_cxt; DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "pd = %08x\n", pd); /* Returns a previously allocated protection domain for reuse */ spin_lock_bh(&p_hwfn->p_rdma_info->lock); qed_bmap_release_id(p_hwfn, &p_hwfn->p_rdma_info->pd_map, pd); spin_unlock_bh(&p_hwfn->p_rdma_info->lock); } static int qed_rdma_alloc_xrcd(void *rdma_cxt, u16 *xrcd_id) { struct qed_hwfn *p_hwfn = (struct qed_hwfn *)rdma_cxt; u32 returned_id; int rc; DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "Alloc XRCD\n"); spin_lock_bh(&p_hwfn->p_rdma_info->lock); rc = qed_rdma_bmap_alloc_id(p_hwfn, &p_hwfn->p_rdma_info->xrcd_map, &returned_id); spin_unlock_bh(&p_hwfn->p_rdma_info->lock); if (rc) { DP_NOTICE(p_hwfn, "Failed in allocating xrcd id\n"); return rc; } *xrcd_id = (u16)returned_id; DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "Alloc XRCD - done, rc = %d\n", rc); return rc; } static void qed_rdma_free_xrcd(void *rdma_cxt, u16 xrcd_id) { struct qed_hwfn *p_hwfn = (struct qed_hwfn *)rdma_cxt; DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "xrcd_id = %08x\n", xrcd_id); spin_lock_bh(&p_hwfn->p_rdma_info->lock); qed_bmap_release_id(p_hwfn, &p_hwfn->p_rdma_info->xrcd_map, xrcd_id); spin_unlock_bh(&p_hwfn->p_rdma_info->lock); } static enum qed_rdma_toggle_bit qed_rdma_toggle_bit_create_resize_cq(struct qed_hwfn *p_hwfn, u16 icid) { struct qed_rdma_info *p_info = p_hwfn->p_rdma_info; enum qed_rdma_toggle_bit toggle_bit; u32 bmap_id; DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "icid = %08x\n", icid); /* the function toggle the bit that is related to a given icid * and returns the new toggle bit's value */ bmap_id = icid - qed_cxt_get_proto_cid_start(p_hwfn, p_info->proto); spin_lock_bh(&p_info->lock); toggle_bit = !test_and_change_bit(bmap_id, p_info->toggle_bits.bitmap); spin_unlock_bh(&p_info->lock); DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "QED_RDMA_TOGGLE_BIT_= %d\n", toggle_bit); return toggle_bit; } static int qed_rdma_create_cq(void *rdma_cxt, struct qed_rdma_create_cq_in_params *params, u16 *icid) { struct qed_hwfn *p_hwfn = (struct qed_hwfn *)rdma_cxt; struct qed_rdma_info *p_info = p_hwfn->p_rdma_info; struct rdma_create_cq_ramrod_data *p_ramrod; enum qed_rdma_toggle_bit toggle_bit; struct qed_sp_init_data init_data; struct qed_spq_entry *p_ent; u32 returned_id, start_cid; int rc; DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "cq_handle = %08x%08x\n", params->cq_handle_hi, params->cq_handle_lo); /* Allocate icid */ spin_lock_bh(&p_info->lock); rc = qed_rdma_bmap_alloc_id(p_hwfn, &p_info->cq_map, &returned_id); spin_unlock_bh(&p_info->lock); if (rc) { DP_NOTICE(p_hwfn, "Can't create CQ, rc = %d\n", rc); return rc; } start_cid = qed_cxt_get_proto_cid_start(p_hwfn, p_info->proto); *icid = returned_id + start_cid; /* Check if icid requires a page allocation */ rc = qed_cxt_dynamic_ilt_alloc(p_hwfn, QED_ELEM_CXT, *icid); if (rc) goto err; /* Get SPQ entry */ memset(&init_data, 0, sizeof(init_data)); init_data.cid = *icid; init_data.opaque_fid = p_hwfn->hw_info.opaque_fid; init_data.comp_mode = QED_SPQ_MODE_EBLOCK; /* Send create CQ ramrod */ rc = qed_sp_init_request(p_hwfn, &p_ent, RDMA_RAMROD_CREATE_CQ, p_info->proto, &init_data); if (rc) goto err; p_ramrod = &p_ent->ramrod.rdma_create_cq; p_ramrod->cq_handle.hi = cpu_to_le32(params->cq_handle_hi); p_ramrod->cq_handle.lo = cpu_to_le32(params->cq_handle_lo); p_ramrod->dpi = cpu_to_le16(params->dpi); p_ramrod->is_two_level_pbl = params->pbl_two_level; p_ramrod->max_cqes = cpu_to_le32(params->cq_size); DMA_REGPAIR_LE(p_ramrod->pbl_addr, params->pbl_ptr); p_ramrod->pbl_num_pages = cpu_to_le16(params->pbl_num_pages); p_ramrod->cnq_id = (u8)RESC_START(p_hwfn, QED_RDMA_CNQ_RAM) + params->cnq_id; p_ramrod->int_timeout = cpu_to_le16(params->int_timeout); /* toggle the bit for every resize or create cq for a given icid */ toggle_bit = qed_rdma_toggle_bit_create_resize_cq(p_hwfn, *icid); p_ramrod->toggle_bit = toggle_bit; rc = qed_spq_post(p_hwfn, p_ent, NULL); if (rc) { /* restore toggle bit */ qed_rdma_toggle_bit_create_resize_cq(p_hwfn, *icid); goto err; } DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "Created CQ, rc = %d\n", rc); return rc; err: /* release allocated icid */ spin_lock_bh(&p_info->lock); qed_bmap_release_id(p_hwfn, &p_info->cq_map, returned_id); spin_unlock_bh(&p_info->lock); DP_NOTICE(p_hwfn, "Create CQ failed, rc = %d\n", rc); return rc; } static int qed_rdma_destroy_cq(void *rdma_cxt, struct qed_rdma_destroy_cq_in_params *in_params, struct qed_rdma_destroy_cq_out_params *out_params) { struct qed_hwfn *p_hwfn = (struct qed_hwfn *)rdma_cxt; struct rdma_destroy_cq_output_params *p_ramrod_res; struct rdma_destroy_cq_ramrod_data *p_ramrod; struct qed_sp_init_data init_data; struct qed_spq_entry *p_ent; dma_addr_t ramrod_res_phys; enum protocol_type proto; int rc = -ENOMEM; DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "icid = %08x\n", in_params->icid); p_ramrod_res = dma_alloc_coherent(&p_hwfn->cdev->pdev->dev, sizeof(struct rdma_destroy_cq_output_params), &ramrod_res_phys, GFP_KERNEL); if (!p_ramrod_res) { DP_NOTICE(p_hwfn, "qed destroy cq failed: cannot allocate memory (ramrod)\n"); return rc; } /* Get SPQ entry */ memset(&init_data, 0, sizeof(init_data)); init_data.cid = in_params->icid; init_data.opaque_fid = p_hwfn->hw_info.opaque_fid; init_data.comp_mode = QED_SPQ_MODE_EBLOCK; proto = p_hwfn->p_rdma_info->proto; /* Send destroy CQ ramrod */ rc = qed_sp_init_request(p_hwfn, &p_ent, RDMA_RAMROD_DESTROY_CQ, proto, &init_data); if (rc) goto err; p_ramrod = &p_ent->ramrod.rdma_destroy_cq; DMA_REGPAIR_LE(p_ramrod->output_params_addr, ramrod_res_phys); rc = qed_spq_post(p_hwfn, p_ent, NULL); if (rc) goto err; out_params->num_cq_notif = le16_to_cpu(p_ramrod_res->cnq_num); dma_free_coherent(&p_hwfn->cdev->pdev->dev, sizeof(struct rdma_destroy_cq_output_params), p_ramrod_res, ramrod_res_phys); /* Free icid */ spin_lock_bh(&p_hwfn->p_rdma_info->lock); qed_bmap_release_id(p_hwfn, &p_hwfn->p_rdma_info->cq_map, (in_params->icid - qed_cxt_get_proto_cid_start(p_hwfn, proto))); spin_unlock_bh(&p_hwfn->p_rdma_info->lock); DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "Destroyed CQ, rc = %d\n", rc); return rc; err: dma_free_coherent(&p_hwfn->cdev->pdev->dev, sizeof(struct rdma_destroy_cq_output_params), p_ramrod_res, ramrod_res_phys); return rc; } void qed_rdma_set_fw_mac(__le16 *p_fw_mac, const u8 *p_qed_mac) { p_fw_mac[0] = cpu_to_le16((p_qed_mac[0] << 8) + p_qed_mac[1]); p_fw_mac[1] = cpu_to_le16((p_qed_mac[2] << 8) + p_qed_mac[3]); p_fw_mac[2] = cpu_to_le16((p_qed_mac[4] << 8) + p_qed_mac[5]); } static int qed_rdma_query_qp(void *rdma_cxt, struct qed_rdma_qp *qp, struct qed_rdma_query_qp_out_params *out_params) { struct qed_hwfn *p_hwfn = (struct qed_hwfn *)rdma_cxt; int rc = 0; DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "icid = %08x\n", qp->icid); /* The following fields are filled in from qp and not FW as they can't * be modified by FW */ out_params->mtu = qp->mtu; out_params->dest_qp = qp->dest_qp; out_params->incoming_atomic_en = qp->incoming_atomic_en; out_params->e2e_flow_control_en = qp->e2e_flow_control_en; out_params->incoming_rdma_read_en = qp->incoming_rdma_read_en; out_params->incoming_rdma_write_en = qp->incoming_rdma_write_en; out_params->dgid = qp->dgid; out_params->flow_label = qp->flow_label; out_params->hop_limit_ttl = qp->hop_limit_ttl; out_params->traffic_class_tos = qp->traffic_class_tos; out_params->timeout = qp->ack_timeout; out_params->rnr_retry = qp->rnr_retry_cnt; out_params->retry_cnt = qp->retry_cnt; out_params->min_rnr_nak_timer = qp->min_rnr_nak_timer; out_params->pkey_index = 0; out_params->max_rd_atomic = qp->max_rd_atomic_req; out_params->max_dest_rd_atomic = qp->max_rd_atomic_resp; out_params->sqd_async = qp->sqd_async; if (QED_IS_IWARP_PERSONALITY(p_hwfn)) qed_iwarp_query_qp(qp, out_params); else rc = qed_roce_query_qp(p_hwfn, qp, out_params); DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "Query QP, rc = %d\n", rc); return rc; } static int qed_rdma_destroy_qp(void *rdma_cxt, struct qed_rdma_qp *qp) { struct qed_hwfn *p_hwfn = (struct qed_hwfn *)rdma_cxt; int rc = 0; DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "icid = %08x\n", qp->icid); if (QED_IS_IWARP_PERSONALITY(p_hwfn)) rc = qed_iwarp_destroy_qp(p_hwfn, qp); else rc = qed_roce_destroy_qp(p_hwfn, qp); /* free qp params struct */ kfree(qp); DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "QP destroyed\n"); return rc; } static struct qed_rdma_qp * qed_rdma_create_qp(void *rdma_cxt, struct qed_rdma_create_qp_in_params *in_params, struct qed_rdma_create_qp_out_params *out_params) { struct qed_hwfn *p_hwfn = (struct qed_hwfn *)rdma_cxt; struct qed_rdma_qp *qp; u8 max_stats_queues; int rc; if (!rdma_cxt || !in_params || !out_params || !p_hwfn->p_rdma_info->active) { pr_err("qed roce create qp failed due to NULL entry (rdma_cxt=%p, in=%p, out=%p, roce_info=?\n", rdma_cxt, in_params, out_params); return NULL; } DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "qed rdma create qp called with qp_handle = %08x%08x\n", in_params->qp_handle_hi, in_params->qp_handle_lo); /* Some sanity checks... */ max_stats_queues = p_hwfn->p_rdma_info->dev->max_stats_queues; if (in_params->stats_queue >= max_stats_queues) { DP_ERR(p_hwfn->cdev, "qed rdma create qp failed due to invalid statistics queue %d. maximum is %d\n", in_params->stats_queue, max_stats_queues); return NULL; } if (QED_IS_IWARP_PERSONALITY(p_hwfn)) { if (in_params->sq_num_pages * sizeof(struct regpair) > IWARP_SHARED_QUEUE_PAGE_SQ_PBL_MAX_SIZE) { DP_NOTICE(p_hwfn->cdev, "Sq num pages: %d exceeds maximum\n", in_params->sq_num_pages); return NULL; } if (in_params->rq_num_pages * sizeof(struct regpair) > IWARP_SHARED_QUEUE_PAGE_RQ_PBL_MAX_SIZE) { DP_NOTICE(p_hwfn->cdev, "Rq num pages: %d exceeds maximum\n", in_params->rq_num_pages); return NULL; } } qp = kzalloc(sizeof(*qp), GFP_KERNEL); if (!qp) return NULL; qp->cur_state = QED_ROCE_QP_STATE_RESET; qp->qp_handle.hi = cpu_to_le32(in_params->qp_handle_hi); qp->qp_handle.lo = cpu_to_le32(in_params->qp_handle_lo); qp->qp_handle_async.hi = cpu_to_le32(in_params->qp_handle_async_hi); qp->qp_handle_async.lo = cpu_to_le32(in_params->qp_handle_async_lo); qp->use_srq = in_params->use_srq; qp->signal_all = in_params->signal_all; qp->fmr_and_reserved_lkey = in_params->fmr_and_reserved_lkey; qp->pd = in_params->pd; qp->dpi = in_params->dpi; qp->sq_cq_id = in_params->sq_cq_id; qp->sq_num_pages = in_params->sq_num_pages; qp->sq_pbl_ptr = in_params->sq_pbl_ptr; qp->rq_cq_id = in_params->rq_cq_id; qp->rq_num_pages = in_params->rq_num_pages; qp->rq_pbl_ptr = in_params->rq_pbl_ptr; qp->srq_id = in_params->srq_id; qp->req_offloaded = false; qp->resp_offloaded = false; qp->e2e_flow_control_en = qp->use_srq ? false : true; qp->stats_queue = in_params->stats_queue; qp->qp_type = in_params->qp_type; qp->xrcd_id = in_params->xrcd_id; if (QED_IS_IWARP_PERSONALITY(p_hwfn)) { rc = qed_iwarp_create_qp(p_hwfn, qp, out_params); qp->qpid = qp->icid; } else { qp->edpm_mode = GET_FIELD(in_params->flags, QED_ROCE_EDPM_MODE); rc = qed_roce_alloc_cid(p_hwfn, &qp->icid); qp->qpid = ((0xFF << 16) | qp->icid); } if (rc) { kfree(qp); return NULL; } out_params->icid = qp->icid; out_params->qp_id = qp->qpid; DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "Create QP, rc = %d\n", rc); return qp; } static int qed_rdma_modify_qp(void *rdma_cxt, struct qed_rdma_qp *qp, struct qed_rdma_modify_qp_in_params *params) { struct qed_hwfn *p_hwfn = (struct qed_hwfn *)rdma_cxt; enum qed_roce_qp_state prev_state; int rc = 0; DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "icid = %08x params->new_state=%d\n", qp->icid, params->new_state); if (rc) { DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "rc = %d\n", rc); return rc; } if (GET_FIELD(params->modify_flags, QED_RDMA_MODIFY_QP_VALID_RDMA_OPS_EN)) { qp->incoming_rdma_read_en = params->incoming_rdma_read_en; qp->incoming_rdma_write_en = params->incoming_rdma_write_en; qp->incoming_atomic_en = params->incoming_atomic_en; } /* Update QP structure with the updated values */ if (GET_FIELD(params->modify_flags, QED_ROCE_MODIFY_QP_VALID_ROCE_MODE)) qp->roce_mode = params->roce_mode; if (GET_FIELD(params->modify_flags, QED_ROCE_MODIFY_QP_VALID_PKEY)) qp->pkey = params->pkey; if (GET_FIELD(params->modify_flags, QED_ROCE_MODIFY_QP_VALID_E2E_FLOW_CONTROL_EN)) qp->e2e_flow_control_en = params->e2e_flow_control_en; if (GET_FIELD(params->modify_flags, QED_ROCE_MODIFY_QP_VALID_DEST_QP)) qp->dest_qp = params->dest_qp; if (GET_FIELD(params->modify_flags, QED_ROCE_MODIFY_QP_VALID_ADDRESS_VECTOR)) { /* Indicates that the following parameters have changed: * Traffic class, flow label, hop limit, source GID, * destination GID, loopback indicator */ qp->traffic_class_tos = params->traffic_class_tos; qp->flow_label = params->flow_label; qp->hop_limit_ttl = params->hop_limit_ttl; qp->sgid = params->sgid; qp->dgid = params->dgid; qp->udp_src_port = 0; qp->vlan_id = params->vlan_id; qp->mtu = params->mtu; qp->lb_indication = params->lb_indication; memcpy((u8 *)&qp->remote_mac_addr[0], (u8 *)¶ms->remote_mac_addr[0], ETH_ALEN); if (params->use_local_mac) { memcpy((u8 *)&qp->local_mac_addr[0], (u8 *)¶ms->local_mac_addr[0], ETH_ALEN); } else { memcpy((u8 *)&qp->local_mac_addr[0], (u8 *)&p_hwfn->hw_info.hw_mac_addr, ETH_ALEN); } } if (GET_FIELD(params->modify_flags, QED_ROCE_MODIFY_QP_VALID_RQ_PSN)) qp->rq_psn = params->rq_psn; if (GET_FIELD(params->modify_flags, QED_ROCE_MODIFY_QP_VALID_SQ_PSN)) qp->sq_psn = params->sq_psn; if (GET_FIELD(params->modify_flags, QED_RDMA_MODIFY_QP_VALID_MAX_RD_ATOMIC_REQ)) qp->max_rd_atomic_req = params->max_rd_atomic_req; if (GET_FIELD(params->modify_flags, QED_RDMA_MODIFY_QP_VALID_MAX_RD_ATOMIC_RESP)) qp->max_rd_atomic_resp = params->max_rd_atomic_resp; if (GET_FIELD(params->modify_flags, QED_ROCE_MODIFY_QP_VALID_ACK_TIMEOUT)) qp->ack_timeout = params->ack_timeout; if (GET_FIELD(params->modify_flags, QED_ROCE_MODIFY_QP_VALID_RETRY_CNT)) qp->retry_cnt = params->retry_cnt; if (GET_FIELD(params->modify_flags, QED_ROCE_MODIFY_QP_VALID_RNR_RETRY_CNT)) qp->rnr_retry_cnt = params->rnr_retry_cnt; if (GET_FIELD(params->modify_flags, QED_ROCE_MODIFY_QP_VALID_MIN_RNR_NAK_TIMER)) qp->min_rnr_nak_timer = params->min_rnr_nak_timer; qp->sqd_async = params->sqd_async; prev_state = qp->cur_state; if (GET_FIELD(params->modify_flags, QED_RDMA_MODIFY_QP_VALID_NEW_STATE)) { qp->cur_state = params->new_state; DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "qp->cur_state=%d\n", qp->cur_state); } switch (qp->qp_type) { case QED_RDMA_QP_TYPE_XRC_INI: qp->has_req = true; break; case QED_RDMA_QP_TYPE_XRC_TGT: qp->has_resp = true; break; default: qp->has_req = true; qp->has_resp = true; } if (QED_IS_IWARP_PERSONALITY(p_hwfn)) { enum qed_iwarp_qp_state new_state = qed_roce2iwarp_state(qp->cur_state); rc = qed_iwarp_modify_qp(p_hwfn, qp, new_state, 0); } else { rc = qed_roce_modify_qp(p_hwfn, qp, prev_state, params); } DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "Modify QP, rc = %d\n", rc); return rc; } static int qed_rdma_register_tid(void *rdma_cxt, struct qed_rdma_register_tid_in_params *params) { struct qed_hwfn *p_hwfn = (struct qed_hwfn *)rdma_cxt; struct rdma_register_tid_ramrod_data *p_ramrod; struct qed_sp_init_data init_data; struct qed_spq_entry *p_ent; enum rdma_tid_type tid_type; u8 fw_return_code; u16 flags = 0; int rc; DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "itid = %08x\n", params->itid); /* Get SPQ entry */ memset(&init_data, 0, sizeof(init_data)); init_data.opaque_fid = p_hwfn->hw_info.opaque_fid; init_data.comp_mode = QED_SPQ_MODE_EBLOCK; rc = qed_sp_init_request(p_hwfn, &p_ent, RDMA_RAMROD_REGISTER_MR, p_hwfn->p_rdma_info->proto, &init_data); if (rc) { DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "rc = %d\n", rc); return rc; } if (p_hwfn->p_rdma_info->last_tid < params->itid) p_hwfn->p_rdma_info->last_tid = params->itid; SET_FIELD(flags, RDMA_REGISTER_TID_RAMROD_DATA_TWO_LEVEL_PBL, params->pbl_two_level); SET_FIELD(flags, RDMA_REGISTER_TID_RAMROD_DATA_ZERO_BASED, false); SET_FIELD(flags, RDMA_REGISTER_TID_RAMROD_DATA_PHY_MR, params->phy_mr); /* Don't initialize D/C field, as it may override other bits. */ if (!(params->tid_type == QED_RDMA_TID_FMR) && !(params->dma_mr)) SET_FIELD(flags, RDMA_REGISTER_TID_RAMROD_DATA_PAGE_SIZE_LOG, params->page_size_log - 12); SET_FIELD(flags, RDMA_REGISTER_TID_RAMROD_DATA_REMOTE_READ, params->remote_read); SET_FIELD(flags, RDMA_REGISTER_TID_RAMROD_DATA_REMOTE_WRITE, params->remote_write); SET_FIELD(flags, RDMA_REGISTER_TID_RAMROD_DATA_REMOTE_ATOMIC, params->remote_atomic); SET_FIELD(flags, RDMA_REGISTER_TID_RAMROD_DATA_LOCAL_WRITE, params->local_write); SET_FIELD(flags, RDMA_REGISTER_TID_RAMROD_DATA_LOCAL_READ, params->local_read); SET_FIELD(flags, RDMA_REGISTER_TID_RAMROD_DATA_ENABLE_MW_BIND, params->mw_bind); p_ramrod = &p_ent->ramrod.rdma_register_tid; p_ramrod->flags = cpu_to_le16(flags); SET_FIELD(p_ramrod->flags1, RDMA_REGISTER_TID_RAMROD_DATA_PBL_PAGE_SIZE_LOG, params->pbl_page_size_log - 12); SET_FIELD(p_ramrod->flags2, RDMA_REGISTER_TID_RAMROD_DATA_DMA_MR, params->dma_mr); switch (params->tid_type) { case QED_RDMA_TID_REGISTERED_MR: tid_type = RDMA_TID_REGISTERED_MR; break; case QED_RDMA_TID_FMR: tid_type = RDMA_TID_FMR; break; case QED_RDMA_TID_MW: tid_type = RDMA_TID_MW; break; default: rc = -EINVAL; DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "rc = %d\n", rc); qed_sp_destroy_request(p_hwfn, p_ent); return rc; } SET_FIELD(p_ramrod->flags1, RDMA_REGISTER_TID_RAMROD_DATA_TID_TYPE, tid_type); p_ramrod->itid = cpu_to_le32(params->itid); p_ramrod->key = params->key; p_ramrod->pd = cpu_to_le16(params->pd); p_ramrod->length_hi = (u8)(params->length >> 32); p_ramrod->length_lo = DMA_LO_LE(params->length); DMA_REGPAIR_LE(p_ramrod->va, params->vaddr); DMA_REGPAIR_LE(p_ramrod->pbl_base, params->pbl_ptr); /* DIF */ if (params->dif_enabled) { SET_FIELD(p_ramrod->flags2, RDMA_REGISTER_TID_RAMROD_DATA_DIF_ON_HOST_FLG, 1); DMA_REGPAIR_LE(p_ramrod->dif_error_addr, params->dif_error_addr); } rc = qed_spq_post(p_hwfn, p_ent, &fw_return_code); if (rc) return rc; if (fw_return_code != RDMA_RETURN_OK) { DP_NOTICE(p_hwfn, "fw_return_code = %d\n", fw_return_code); return -EINVAL; } DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "Register TID, rc = %d\n", rc); return rc; } static int qed_rdma_deregister_tid(void *rdma_cxt, u32 itid) { struct qed_hwfn *p_hwfn = (struct qed_hwfn *)rdma_cxt; struct rdma_deregister_tid_ramrod_data *p_ramrod; struct qed_sp_init_data init_data; struct qed_spq_entry *p_ent; struct qed_ptt *p_ptt; u8 fw_return_code; int rc; DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "itid = %08x\n", itid); /* Get SPQ entry */ memset(&init_data, 0, sizeof(init_data)); init_data.opaque_fid = p_hwfn->hw_info.opaque_fid; init_data.comp_mode = QED_SPQ_MODE_EBLOCK; rc = qed_sp_init_request(p_hwfn, &p_ent, RDMA_RAMROD_DEREGISTER_MR, p_hwfn->p_rdma_info->proto, &init_data); if (rc) { DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "rc = %d\n", rc); return rc; } p_ramrod = &p_ent->ramrod.rdma_deregister_tid; p_ramrod->itid = cpu_to_le32(itid); rc = qed_spq_post(p_hwfn, p_ent, &fw_return_code); if (rc) { DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "rc = %d\n", rc); return rc; } if (fw_return_code == RDMA_RETURN_DEREGISTER_MR_BAD_STATE_ERR) { DP_NOTICE(p_hwfn, "fw_return_code = %d\n", fw_return_code); return -EINVAL; } else if (fw_return_code == RDMA_RETURN_NIG_DRAIN_REQ) { /* Bit indicating that the TID is in use and a nig drain is * required before sending the ramrod again */ p_ptt = qed_ptt_acquire(p_hwfn); if (!p_ptt) { rc = -EBUSY; DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "Failed to acquire PTT\n"); return rc; } rc = qed_mcp_drain(p_hwfn, p_ptt); if (rc) { qed_ptt_release(p_hwfn, p_ptt); DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "Drain failed\n"); return rc; } qed_ptt_release(p_hwfn, p_ptt); /* Resend the ramrod */ rc = qed_sp_init_request(p_hwfn, &p_ent, RDMA_RAMROD_DEREGISTER_MR, p_hwfn->p_rdma_info->proto, &init_data); if (rc) { DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "Failed to init sp-element\n"); return rc; } rc = qed_spq_post(p_hwfn, p_ent, &fw_return_code); if (rc) { DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "Ramrod failed\n"); return rc; } if (fw_return_code != RDMA_RETURN_OK) { DP_NOTICE(p_hwfn, "fw_return_code = %d\n", fw_return_code); return rc; } } DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "De-registered TID, rc = %d\n", rc); return rc; } static void *qed_rdma_get_rdma_ctx(struct qed_dev *cdev) { return QED_AFFIN_HWFN(cdev); } static struct qed_bmap *qed_rdma_get_srq_bmap(struct qed_hwfn *p_hwfn, bool is_xrc) { if (is_xrc) return &p_hwfn->p_rdma_info->xrc_srq_map; return &p_hwfn->p_rdma_info->srq_map; } static int qed_rdma_modify_srq(void *rdma_cxt, struct qed_rdma_modify_srq_in_params *in_params) { struct rdma_srq_modify_ramrod_data *p_ramrod; struct qed_sp_init_data init_data = {}; struct qed_hwfn *p_hwfn = rdma_cxt; struct qed_spq_entry *p_ent; u16 opaque_fid; int rc; init_data.opaque_fid = p_hwfn->hw_info.opaque_fid; init_data.comp_mode = QED_SPQ_MODE_EBLOCK; rc = qed_sp_init_request(p_hwfn, &p_ent, RDMA_RAMROD_MODIFY_SRQ, p_hwfn->p_rdma_info->proto, &init_data); if (rc) return rc; p_ramrod = &p_ent->ramrod.rdma_modify_srq; p_ramrod->srq_id.srq_idx = cpu_to_le16(in_params->srq_id); opaque_fid = p_hwfn->hw_info.opaque_fid; p_ramrod->srq_id.opaque_fid = cpu_to_le16(opaque_fid); p_ramrod->wqe_limit = cpu_to_le32(in_params->wqe_limit); rc = qed_spq_post(p_hwfn, p_ent, NULL); if (rc) return rc; DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "modified SRQ id = %x, is_xrc=%u\n", in_params->srq_id, in_params->is_xrc); return rc; } static int qed_rdma_destroy_srq(void *rdma_cxt, struct qed_rdma_destroy_srq_in_params *in_params) { struct rdma_srq_destroy_ramrod_data *p_ramrod; struct qed_sp_init_data init_data = {}; struct qed_hwfn *p_hwfn = rdma_cxt; struct qed_spq_entry *p_ent; struct qed_bmap *bmap; u16 opaque_fid; u16 offset; int rc; opaque_fid = p_hwfn->hw_info.opaque_fid; init_data.opaque_fid = opaque_fid; init_data.comp_mode = QED_SPQ_MODE_EBLOCK; rc = qed_sp_init_request(p_hwfn, &p_ent, RDMA_RAMROD_DESTROY_SRQ, p_hwfn->p_rdma_info->proto, &init_data); if (rc) return rc; p_ramrod = &p_ent->ramrod.rdma_destroy_srq; p_ramrod->srq_id.srq_idx = cpu_to_le16(in_params->srq_id); p_ramrod->srq_id.opaque_fid = cpu_to_le16(opaque_fid); rc = qed_spq_post(p_hwfn, p_ent, NULL); if (rc) return rc; bmap = qed_rdma_get_srq_bmap(p_hwfn, in_params->is_xrc); offset = (in_params->is_xrc) ? 0 : p_hwfn->p_rdma_info->srq_id_offset; spin_lock_bh(&p_hwfn->p_rdma_info->lock); qed_bmap_release_id(p_hwfn, bmap, in_params->srq_id - offset); spin_unlock_bh(&p_hwfn->p_rdma_info->lock); DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "XRC/SRQ destroyed Id = %x, is_xrc=%u\n", in_params->srq_id, in_params->is_xrc); return rc; } static int qed_rdma_create_srq(void *rdma_cxt, struct qed_rdma_create_srq_in_params *in_params, struct qed_rdma_create_srq_out_params *out_params) { struct rdma_srq_create_ramrod_data *p_ramrod; struct qed_sp_init_data init_data = {}; struct qed_hwfn *p_hwfn = rdma_cxt; enum qed_cxt_elem_type elem_type; struct qed_spq_entry *p_ent; u16 opaque_fid, srq_id; struct qed_bmap *bmap; u32 returned_id; u16 offset; int rc; bmap = qed_rdma_get_srq_bmap(p_hwfn, in_params->is_xrc); spin_lock_bh(&p_hwfn->p_rdma_info->lock); rc = qed_rdma_bmap_alloc_id(p_hwfn, bmap, &returned_id); spin_unlock_bh(&p_hwfn->p_rdma_info->lock); if (rc) { DP_NOTICE(p_hwfn, "failed to allocate xrc/srq id (is_xrc=%u)\n", in_params->is_xrc); return rc; } elem_type = (in_params->is_xrc) ? (QED_ELEM_XRC_SRQ) : (QED_ELEM_SRQ); rc = qed_cxt_dynamic_ilt_alloc(p_hwfn, elem_type, returned_id); if (rc) goto err; opaque_fid = p_hwfn->hw_info.opaque_fid; opaque_fid = p_hwfn->hw_info.opaque_fid; init_data.opaque_fid = opaque_fid; init_data.comp_mode = QED_SPQ_MODE_EBLOCK; rc = qed_sp_init_request(p_hwfn, &p_ent, RDMA_RAMROD_CREATE_SRQ, p_hwfn->p_rdma_info->proto, &init_data); if (rc) goto err; p_ramrod = &p_ent->ramrod.rdma_create_srq; DMA_REGPAIR_LE(p_ramrod->pbl_base_addr, in_params->pbl_base_addr); p_ramrod->pages_in_srq_pbl = cpu_to_le16(in_params->num_pages); p_ramrod->pd_id = cpu_to_le16(in_params->pd_id); p_ramrod->srq_id.opaque_fid = cpu_to_le16(opaque_fid); p_ramrod->page_size = cpu_to_le16(in_params->page_size); DMA_REGPAIR_LE(p_ramrod->producers_addr, in_params->prod_pair_addr); offset = (in_params->is_xrc) ? 0 : p_hwfn->p_rdma_info->srq_id_offset; srq_id = (u16)returned_id + offset; p_ramrod->srq_id.srq_idx = cpu_to_le16(srq_id); if (in_params->is_xrc) { SET_FIELD(p_ramrod->flags, RDMA_SRQ_CREATE_RAMROD_DATA_XRC_FLAG, 1); SET_FIELD(p_ramrod->flags, RDMA_SRQ_CREATE_RAMROD_DATA_RESERVED_KEY_EN, in_params->reserved_key_en); p_ramrod->xrc_srq_cq_cid = cpu_to_le32((p_hwfn->hw_info.opaque_fid << 16) | in_params->cq_cid); p_ramrod->xrc_domain = cpu_to_le16(in_params->xrcd_id); } rc = qed_spq_post(p_hwfn, p_ent, NULL); if (rc) goto err; out_params->srq_id = srq_id; DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "XRC/SRQ created Id = %x (is_xrc=%u)\n", out_params->srq_id, in_params->is_xrc); return rc; err: spin_lock_bh(&p_hwfn->p_rdma_info->lock); qed_bmap_release_id(p_hwfn, bmap, returned_id); spin_unlock_bh(&p_hwfn->p_rdma_info->lock); return rc; } bool qed_rdma_allocated_qps(struct qed_hwfn *p_hwfn) { bool result; /* if rdma wasn't activated yet, naturally there are no qps */ if (!p_hwfn->p_rdma_info->active) return false; spin_lock_bh(&p_hwfn->p_rdma_info->lock); if (!p_hwfn->p_rdma_info->cid_map.bitmap) result = false; else result = !qed_bmap_is_empty(&p_hwfn->p_rdma_info->cid_map); spin_unlock_bh(&p_hwfn->p_rdma_info->lock); return result; } void qed_rdma_dpm_conf(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt) { u32 val; val = (p_hwfn->dcbx_no_edpm || p_hwfn->db_bar_no_edpm) ? 0 : 1; qed_wr(p_hwfn, p_ptt, DORQ_REG_PF_DPM_ENABLE, val); DP_VERBOSE(p_hwfn, (QED_MSG_DCB | QED_MSG_RDMA), "Changing DPM_EN state to %d (DCBX=%d, DB_BAR=%d)\n", val, p_hwfn->dcbx_no_edpm, p_hwfn->db_bar_no_edpm); } void qed_rdma_dpm_bar(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt) { p_hwfn->db_bar_no_edpm = true; qed_rdma_dpm_conf(p_hwfn, p_ptt); } static int qed_rdma_start(void *rdma_cxt, struct qed_rdma_start_in_params *params) { struct qed_hwfn *p_hwfn = (struct qed_hwfn *)rdma_cxt; struct qed_ptt *p_ptt; int rc = -EBUSY; DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "desired_cnq = %08x\n", params->desired_cnq); p_ptt = qed_ptt_acquire(p_hwfn); if (!p_ptt) goto err; rc = qed_rdma_alloc(p_hwfn); if (rc) goto err1; rc = qed_rdma_setup(p_hwfn, p_ptt, params); if (rc) goto err2; qed_ptt_release(p_hwfn, p_ptt); p_hwfn->p_rdma_info->active = 1; return rc; err2: qed_rdma_free(p_hwfn); err1: qed_ptt_release(p_hwfn, p_ptt); err: DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "RDMA start - error, rc = %d\n", rc); return rc; } static int qed_rdma_init(struct qed_dev *cdev, struct qed_rdma_start_in_params *params) { return qed_rdma_start(QED_AFFIN_HWFN(cdev), params); } static void qed_rdma_remove_user(void *rdma_cxt, u16 dpi) { struct qed_hwfn *p_hwfn = (struct qed_hwfn *)rdma_cxt; DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "dpi = %08x\n", dpi); spin_lock_bh(&p_hwfn->p_rdma_info->lock); qed_bmap_release_id(p_hwfn, &p_hwfn->p_rdma_info->dpi_map, dpi); spin_unlock_bh(&p_hwfn->p_rdma_info->lock); } static int qed_roce_ll2_set_mac_filter(struct qed_dev *cdev, u8 *old_mac_address, const u8 *new_mac_address) { int rc = 0; if (old_mac_address) qed_llh_remove_mac_filter(cdev, 0, old_mac_address); if (new_mac_address) rc = qed_llh_add_mac_filter(cdev, 0, new_mac_address); if (rc) DP_ERR(cdev, "qed roce ll2 mac filter set: failed to add MAC filter\n"); return rc; } static int qed_iwarp_set_engine_affin(struct qed_dev *cdev, bool b_reset) { enum qed_eng eng; u8 ppfid = 0; int rc; /* Make sure iwarp cmt mode is enabled before setting affinity */ if (!cdev->iwarp_cmt) return -EINVAL; if (b_reset) eng = QED_BOTH_ENG; else eng = cdev->l2_affin_hint ? QED_ENG1 : QED_ENG0; rc = qed_llh_set_ppfid_affinity(cdev, ppfid, eng); if (rc) { DP_NOTICE(cdev, "Failed to set the engine affinity of ppfid %d\n", ppfid); return rc; } DP_VERBOSE(cdev, (QED_MSG_RDMA | QED_MSG_SP), "LLH: Set the engine affinity of non-RoCE packets as %d\n", eng); return 0; } static const struct qed_rdma_ops qed_rdma_ops_pass = { .common = &qed_common_ops_pass, .fill_dev_info = &qed_fill_rdma_dev_info, .rdma_get_rdma_ctx = &qed_rdma_get_rdma_ctx, .rdma_init = &qed_rdma_init, .rdma_add_user = &qed_rdma_add_user, .rdma_remove_user = &qed_rdma_remove_user, .rdma_stop = &qed_rdma_stop, .rdma_query_port = &qed_rdma_query_port, .rdma_query_device = &qed_rdma_query_device, .rdma_get_start_sb = &qed_rdma_get_sb_start, .rdma_get_rdma_int = &qed_rdma_get_int, .rdma_set_rdma_int = &qed_rdma_set_int, .rdma_get_min_cnq_msix = &qed_rdma_get_min_cnq_msix, .rdma_cnq_prod_update = &qed_rdma_cnq_prod_update, .rdma_alloc_pd = &qed_rdma_alloc_pd, .rdma_dealloc_pd = &qed_rdma_free_pd, .rdma_alloc_xrcd = &qed_rdma_alloc_xrcd, .rdma_dealloc_xrcd = &qed_rdma_free_xrcd, .rdma_create_cq = &qed_rdma_create_cq, .rdma_destroy_cq = &qed_rdma_destroy_cq, .rdma_create_qp = &qed_rdma_create_qp, .rdma_modify_qp = &qed_rdma_modify_qp, .rdma_query_qp = &qed_rdma_query_qp, .rdma_destroy_qp = &qed_rdma_destroy_qp, .rdma_alloc_tid = &qed_rdma_alloc_tid, .rdma_free_tid = &qed_rdma_free_tid, .rdma_register_tid = &qed_rdma_register_tid, .rdma_deregister_tid = &qed_rdma_deregister_tid, .rdma_create_srq = &qed_rdma_create_srq, .rdma_modify_srq = &qed_rdma_modify_srq, .rdma_destroy_srq = &qed_rdma_destroy_srq, .ll2_acquire_connection = &qed_ll2_acquire_connection, .ll2_establish_connection = &qed_ll2_establish_connection, .ll2_terminate_connection = &qed_ll2_terminate_connection, .ll2_release_connection = &qed_ll2_release_connection, .ll2_post_rx_buffer = &qed_ll2_post_rx_buffer, .ll2_prepare_tx_packet = &qed_ll2_prepare_tx_packet, .ll2_set_fragment_of_tx_packet = &qed_ll2_set_fragment_of_tx_packet, .ll2_set_mac_filter = &qed_roce_ll2_set_mac_filter, .ll2_get_stats = &qed_ll2_get_stats, .iwarp_set_engine_affin = &qed_iwarp_set_engine_affin, .iwarp_connect = &qed_iwarp_connect, .iwarp_create_listen = &qed_iwarp_create_listen, .iwarp_destroy_listen = &qed_iwarp_destroy_listen, .iwarp_accept = &qed_iwarp_accept, .iwarp_reject = &qed_iwarp_reject, .iwarp_send_rtr = &qed_iwarp_send_rtr, }; const struct qed_rdma_ops *qed_get_rdma_ops(void) { return &qed_rdma_ops_pass; } EXPORT_SYMBOL(qed_get_rdma_ops);
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